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I have a 300 six with the teeth stripped off the timing gear. Is this a common problem with these motors or do I have another problem I need to correct before I put this motor back together?
hey i had the same problem there aint nothin wrong with the engine that bottom timing gear is composite and it is poodle poop just simple replace it and it will be fine
Last edited by IB Tim; Jan 23, 2005 at 07:46 AM.
Reason: Language
I had the same problem a few years ago.Turned out to be the distibutor locked up and stripped some teeth off the cheap composite gear.i replaced the composite gear with a steel gear and replaced the distibutor and it never ran better
Would bet that the oil was not changed on a regular basis. Will cause the composite gear to fail much faster that the steel one.
I did strip a steel one about 5 years back but the truck was always in a dirty environment.
Also, lots of lugging may have helped cause it as it was off road most of the time and forced to lug a lot. (Low rpms under heavy load, to point of almost dying, like an old D-8 cable dozer from 50's)
I always used 2 qt filters so I had 7 quarts on board instead of the usual 6.
It still did strip but I figure it had well over 200,000 miles on it.
Put a used gear on and went back to work. Still running today. Just replaced this week with 1997 PSD 4x4 F-350 CC, LB 5spd. I hope this truck lasts as long and is as dependable as the 300.
I earned well over 2-million dollars in business fees using the 300 so it more than paid for itself. I to date have had 6 trucks with that engine.
Pbherbie; The timing gear set drives the cam, distributor, and oil pump. It is a good idea to drop the oil pan and make sure that all of the plastic bits are cleaned out. Whether or not you drop and clean the oil pan, at least pull the distributor and examine the distributor gear and the oil pump shaft. The clearances in an oil pump are very small. Sometimes a bit of trash will jam the oil pump which can cause the stripped timing gears. If that was the case, the oil pump shaft may appear to be twisted. It is a good idea to make sure the oil pump and distributor operate freely before you put it all back together.
The timing gears with the plastic teeth are quieter than the all steel gear sets. But, they do seem to occasionally fail. The all steel replacement gear sets are highly recommended.
I had the same problem a few years ago.Turned out to be the distibutor locked up and stripped some teeth off the cheap composite gear.i replaced the composite gear with a steel gear and replaced the distibutor and it never ran better
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